Pith Number

pith:RRUTBUWW

pith:2008:RRUTBUWWWXQ7ONYYPYJH3U6JFH

not attested not anchored not stored refs pending

Random Heegaard splittings

Joseph Maher

arxiv:0809.4881 v2 · 2008-09-29 · math.GT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RRUTBUWWWXQ7ONYYPYJH3U6JFH}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T02:58:11.132363Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c6930d2d6b5e1f737187e127dd3c929d4fd54c778cea639eecdf3dafad541c3

Aliases

arxiv: 0809.4881 · arxiv_version: 0809.4881v2 · doi: 10.48550/arxiv.0809.4881 · pith_short_12: RRUTBUWWWXQ7 · pith_short_16: RRUTBUWWWXQ7ONYY · pith_short_8: RRUTBUWW

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/RRUTBUWWWXQ7ONYYPYJH3U6JFH \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 8c6930d2d6b5e1f737187e127dd3c929d4fd54c778cea639eecdf3dafad541c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ddc0b27803f18bf1b213d14099a04564297643e7366be3c2652ad40d97e7f66",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2008-09-29T01:04:45Z",
    "title_canon_sha256": "e5be1fd43d7d752fe97c075ae70ed9c51ba9e8803192d5fd1e47262b076450dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.4881",
    "kind": "arxiv",
    "version": 2
  }
}